the circumference of the base of a 10 height conical tent is 44m. Calculate the length of canvas used in the tent if width of canvas is 2m (use π= 22/7)
Answers
Given :
- The circumference of the base of a 10 height conical tent is 44m =?
To find :
- The length of canvas used in the tent if width of canvas is 2m =?
Step-by-step explanation :
Circumference of base of tent = 44m [Given]
We know that, ,
Circumference of circle = 2πr
Substituting the values in the above formula, we get
44m = 2 × 22/7 × r
r = 7 × 44/44
r = 7m
Therefore, Radius of base of tent , r = 7m
And,
Height of conical tent, h = 10m [Given]
We know that :
Slant height of conical tenth , l = √(h² + r²)
Substituting the values in the above formula, we get,
= √{10² + 7²}
= √{100 + 49}
= √149
= √12.2 × 12.2
= 12.2 m
Now,
Surface area of tent = area of rectangular canvas
Or,
πrl = Length × Breadth
Substituting the values in the above formula, we get,
➮ 22/7 × 7 × 12.2 = Length × 2m
➮ 22 × 12.2/2 = Length
➮ 22 × 6.1 = Length
➮ 134.2 = Length
Therefore, length of canvas used in length of canvas used in making the tent is 134.2m
Answer:
Length of canvas used in making the tent is 134.2m .
Step-by-step explanation:
Circumference of base of tent = 44m
circumference of circle = 2πr
44m = 2 × 22/7 × r
( 44 × 7 )/ (22 × 2) = r
7 = r
r = 7
height of conical tent(h) = 10m
slant height of conical tent( l ) = √(h² + r²)
√{10² + 7²}
√{100 + 49}
12.2 m
now,
surface area of tent = area of rectangular canvas
πrl = L × B
22/7 × 7 × 12.2 = L × 2m
22 × 6.1 = L
L = 134.2 m
hence
length of canvas used in making the tent is 134.2m .
Ans...
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